Posts made by da97ed

@phaedrux I used a duet wifi v1.04.
Connected the 24V - to exp.heater3 on the expansion header and positive to VIN. Despite the wiring of the Fan to heater3 I didn't change anything.
After powering up, all my heaters (E0 and Bed) went crazy and started to heat without any command. I immediately killed the power and disconnected the fan. Since, the DIAG LED ist constantly red, so are the LED next to the USB connector and 3.3+(green) and 5V+.
There are no optical signs of a damage to the board however I am unable to establish a connection to it. I have already tried to erase the FW using the erase Jumper but still I cant connect to it. After 6s the MCU is too hot to touch it.
Im not sure what went wrong, would appreciate any further help. Thanks

@rjenkinsgb did exactly that and fried my board... thanks for nothing

Hi
I'm trying to connect a thermostatically controlled fan at the heater 3 pin but I'm not sure how to wire this. The Fan should be Controlled by the MCU temperature.

This is what I set up in my config.g so far:

M308 S3 A"MCU" Y"mcu-temp" ;display MCU temp within the graph
M950 H3 C"exp.heater3" T3 ;creating heater 3																																			
M950 F3 C"fan3" Q500 ;creating fan 3																			
M106 P3 C"MCU" S3 H3 T40:60 ;control Fan 3 thermostatically. start fan at 40 degrees and rise continually PWM Frequency to 255 when the temperature reached 60 degrees.

I would wire the fan as follows: Connect Fan + to heater3 pin and Fan - to GND.
Is this correct regarding wiring and my config GCode?

Thank you all in advance.